Práctica presión termodinamica
Enviado por joabsangodinez • 13 de Septiembre de 2015 • Práctica o problema • 582 Palabras (3 Páginas) • 186 Visitas
Universidad Nacional Autónoma de México
Facultad de Química
Curso: Laboratorio de Termodinámica
Informe de práctica 3:
Presión
Semestre: 2015-2
Equipo 2
Alumnas:
- Carrillo Medina Atzimba
- Elías López Diana Lizbeth
- Soria Cruz Karla Mitzy
Objetivo:
Reflexionar sobre el concepto científico de presión, conocer sus unidades e instrumentos de medición y aplicar este conocimiento en las actividades académicas.
Tablas de datos de las mediciones con H2O:
Lectura | ha (cm) | hc (cm) | Pmanométrica (cm H2O) | Pmanométrica (cm Hg) | Pabsoluta (cm Hg) |
1 | 22.1 | 19 | 3.1 | 0.2219 | 58.5766 |
2 | 24.1 | 17 | 7.1 | 0.522 | 58.872 |
3 | 23.4 | 17 | 5.9 | 0.4338 | 58.7838 |
4 | 31.5 | 9.9 | 21.6 | 1.5882 | 59.9382 |
5 | 26.5 | 14.5 | 12 | 0.8823 | 59.2323 |
6 | 17.9 | 23 | -5.1 | -0.375 | 57.975 |
7 | 15.9 | 25.1 | -9.2 | -0.676 | 57.674 |
8 | 11.5 | 29.5 | -18 | -1.323 | 57.027 |
9 | 14.3 | 26.8 | -12.5 | -0.919 | 57.431 |
10 | 11 | 30 | -19 | -1.397 | 56.953 |
22.1cmH2O-19cmH2O=3.1cmH2O
17.9cmH2O-23cmH2O=-5.1cmH2O
- H2O)(hH2O)
(1 g/mlH2O)(3.1cmH2O) = 0.3379cmHg
13.6g/ml
(1g/ml)(-5.1cmH2O) = cmHg
13.g/ml
Pabs= 58.35 cmHg + 0.2219 cmHg
Tablas de datos de las mediciones de Hg:
Lectura | ha (cmHg) | hc (cmHg) | Pmanométrica (cmHg) | Pabsoluta (cmHg) |
1 | 23.2 | 21 | 2.2 | 60.55 |
2 | 25.4 | 19 | 6.4 | 64.75 |
3 | 26.1 | 18.3 | 6.8 | 65.15 |
4 | 24.4 | 19.9 | 5.3 | 63.65 |
5 | 25.3 | 19.1 | 6.2 | 65.55 |
6 | 19.2 | 24.6 | -5.4 | 52.95 |
7 | 19.2 | 25.2 | -6 | 52.35 |
8 | 16.6 | 27.7 | -11.1 | 47.25 |
9 | 19.3 | 25 | -5.7 | 52.25 |
10 | 7.81 | 26.7 | -8.9 | 49.45 |
23.2 cmHg - 21 cmHg = 2.2 cmHg
Pabs = 58.35 cmHg + 2.2 cmHg = 60.55 cmHg
Conversiones de la presión absoluta:
Pabs (cmHg) | Pabs (Pa) | P abs (Bar) | Pabs (Torr) | Pabs (atm) | Pabs (PSI) |
58.5766 | 78020.25 | 0.7802025 | 585.766 | 0.770 | 11.315 |
58.872 | 78425.55 | 0.7842555 | 588.72 | 0.774 | 11.373 |
58.7838 | 78324.225 | 0.78324225 | 587.838 | 0.773 | 11.359 |
59.9382 | 79844.1 | 0.798441 | 599.382 | 0.788 | 11.579 |
59.2323 | 78932.175 | 0.78932175 | 592.323 | 0.779 | 11.447 |
57.97 | 77209.65 | 0.7720965 | 579.75 | 0.762 | 11.197 |
57.674 | 76804.35 | 0.7680435 | 576.74 | 0.758 | 11.138 |
57.027 | 75993.75 | 0.7599375 | 570.27 | 0.750 | 11.021 |
57.431 | 76500.375 | 0.76500375 | 574.31 | 0.755 | 11.094 |
56.953 | 75892.425 | 0.75892425 | 569.53 | 0.749 | 11.006 |
60.55 | 8 072.6 | 0.080726 | 60.54 | 0.079 | 11.70 |
64.75 | 8 632.6 | 0.0863 | 64.74 | 0.0851 | 12.51 |
65.15 | 8 685.9 | 0.086 | 65.14 | 0.085 | 12.59 |
63.65 | 8 485.9 | 0.084 | 63.64 | 0.083 | 12.30 |
65.55 | 8 739.2 | 0.087 | 65.54 | 0.086 | 12.67 |
52.95 | 7 059.4 | 0.070 | 52.95 | 0.069 | 10.23 |
52.35 | 6 979.4 | 0.069 | 52.35 | 0.068 | 10.12 |
47.25 | 6 299.4 | 0.062 | 47.25 | 0.062 | 9.13 |
52.25 | 6 966.0 | 0.069 | 52.25 | 0.068 | 9.37 |
49.45 | 6 592.7 | 0.065 | 49.45 | 0.065 | 9.55 |
...